Flexible hose



l Nov. 24, 1925- 1,562,954

H. W. GOODALL.

FLEXIBLE HOSE Filed May 1, .1923

,Wn/Ess" #WEA/rox? Patented Nov. 24, 1925.

UNITED STATES PATENT OFFICE.

FLEXIBLE nosa.l

Application led May 4, 1923. Serial No. 636,527.

To all 'whom t may concern:

Be it known that I, HOWARD W. GooDALL, a citizen of the United States, residing at Aldan, in the county of Delaware and State of' Pennsylvania, have invented a new and useful Improvement in Flexible Hose, of which the following is a specification.

Hitherto each length of flexible hose, more particularly flexible hose of large size, was, in ythe making, provided at its ends with a short piece of metal pipe of which a part entered the end of the hose for a short distance and was permanently secured to the interior of the hose, and of which a part projected beyond the end of the hose and was externally threaded and used, usually in connection with a flange mounted on its external thread, for coupling lengths of hose together. Flexible hose is generally made of layers of vduck and rubber or like material. In use the wall of the hose usually weakens or breaks in rear of and compaia tively close to the inner endof the coupling. In such cases and as hitherto constructed the entire length of hose had to be and was discarded and was not of further use because a piece of pipe could not be inserted into the end of the portion of the length of hose that remained in good condition. Coupling pipes had to be attached to the hose in the course of its manufacture or had to be primarily connected with the hose. In fact the coupling pipes were applied at the ends of a pole and the layers of duck and rubber were wound around the pole and pipes prior to vulcanization.

The .principal objects of the present in! vention are, first, to effectv an economy in the use of the hose; second, to provide for the continued use of alength of hose even after the rupture of its wall near and in rear of the coupling or at some point along its length; third, to facilitate the re-use or continued use of the good portions of such lengths of hose by simplifying and'making easy and possible their connection with other lengths of hose; and fourth, to strengthen and make more durable the connection or bond between the wall of the hose and the coupling element or sleeve. Other objects of the invention will appear from the following description.

The invention, stated broadly, may be said to comprise a flexible hose internally provided throughout its length with spaced cou* pling elements available. for repair use by cutting out defective or ruptured `portions of the hose and in the case of ruptured end portions they may be cut off along with the coupling element forming part thereof, so that a coupling element in the remaining good portion of the length of' hose can be connected with other lengths of hose. The invention further comprises projections in spaced relation provided on the coupling element or sleeve and extending through'the wall of the hose to receive the application of a wrench useful in connecting theI coupling element or sleeve and a pipe section, and the invention further comprises the provision of anchor plates connected with such projections and provided with pins and embedded in the wall of the hose which encircles the coupling element.

The invention also comprises the improvements to be presently described and finally claimed and in the description reference will be made to the embodiment of the invention selected from among other embodiments forl illustration in the accompanying drawings forming part hereof and in which Figure 1 is a View, partly in section and partly in elevation, illustrating a portion of a length of flexible hose having a coupling element embedded in the intermediate portion of its inner wall.

Fig. 2 isa view drawn to an enlarged scale and illustrating details of construction.

Fig. 3 is a section on the line 3-3 of Fig. 2 and Fig. 4 is a top or plan view drawn to an enlarged scale of one of the anchor plates.

In the drawings l is apart of a length of flexible hose. The length is of course not important but for the sake of description it may be said that flexible hose of, for example, eight inches in diameter is frequently made in lengths of 25 feet, and it is both expensive and heavy. These are not matters of importance but are referred to to facilitate 'an understanding and correct conception of what is intended to be -illustrated in Fig. 1, and not by way of limitation, but

for the sake of description. The lengths of flexible hose are shown as provided at their ends 2 with coupling elements or sleeves 3 1nternally threaded for the detachable .reception ot' externally threaded pipe sections 4 by which succeeding lengths of lflexible hose are connected together. It is well known that flexible hose fails or ruptures in rear of and comparative-ly near to'the'endcoupling sleeves 3, for example 4ata in Fig. 1, due no doubt to the bending which takes place in that locality. The coupling elements or sleeves are internally 'offsubstane tially the same bore or diameter as the bore or diameter of `the hose, and they are prr `1 manly 'attached to the 'hose in the sense that the hose is built around them. lin tact the coupling sl'eev'es `3 and 3a "are usually mounted in Vspaced relation `on :and along the length of a p'ole *and the layers of 'duck and r-ubber are wound around 'the pole and sleeves `and the'n vulcanized. lFlexible hose ol the present invention 'is satisfactory for the reason `that when Vfa length of it is ruptured and leaks ias lat a, "the whole length doesV not have to be thrown away because there is a way of attaching "the good 'portion of it tothe pipe section 4, which iis a means :tor connecting itlto theboupling sleeve v"of another length of hose. By the present 1nven-tion coupling sleeves or elements 3a lare provided spaced Vrelation throughout the length of hose l in `tlh'e 'coiurse of its ana'nutactu'reor primarily, `and some of these couplng elements 3" lmay be operatively disposed in krespect to 'one of the ends of the length of hose and the rest of these :coupling sleeves or elements '3a may be 'operatively disposedwin respect to the other ends ozt the length 4ot hose. The number ol coupling sleeves or elements 3a provided between the ends of the length of hose .is not important and may be increased -or diminished.

As shown in Figs. 2 and 3 the coupling elements or sleeves are of metal and Lare internally threaded as at 5 lor engagement with the external thread `on the vpipe 1sec,- tions 4 and are externally ribbed or serrated for Y'engagement with the inner surface of the body 'f6 of 'the hose. The coupling elements or sleeves lare also 'sh'own as provided with spaced radially arranged projections 7 that extend through the wall 6 of the hose to the outer surface Athereot1 xand. they serve two purposes. @ne purpose is to receive a wrench when the pipe section -4 is applied, and another purpose is topass through holes 8 in anchor plates 9 provided with a plurality of pins 10 that are driven into the layers that 'make up the 'body 'of the "wall 6. The function ot the anchor plates is to firmly connect the hose 'and the coupling element. The number of anchor plates may be increased or diminished. 11 are `wires or clamps that may be `applied 'around the exterior of the" hose to bind it vonto the cou- The operation of the improved flexible y hose length may be described as follows:

In the event of the rupture as at L of the ywall of v'thehose in rear of the coupling element or sleeve 3 connected with the pipe section 4, the ruptured end of the hose is `cut oil' and thepipe section 4 detached from the coupling sleeve or element forming part of the hose length which hasbeen cut olf and `then th-e pipeis'e'c'tion 4 is screwed into the next coupling elemenlt or 'sleeve -as 3, thus the good part of the hose, that is the part to 'the left ot' I3, is available kor use. In this `operation 'the projections or spurs 7 are important because they receive the wrench or wrenches employed and the 'anchor plates 9 and their pins insure :the maintenance ol ia good and satisfactory lhond or connection.

In the event of al rupture between any two sleeves, for example at ythe intermediate portion of a length of hose, the ruptured part betweeny the sleeves can be cut out vleaving the sleeves available for Vconnecting the two parts of the length `of h'o'se. In such case the sleeves are threaded at 'each end for the reception yof parts 4.

It will be obvious t'o those skilled in the art to which the invention relates that modilicati-ons may be made indetails of construction vand arrangement without departing from the spirit ot' the invention which is not limited to such Imatters or -otherwise than as theiprior art and the `:appended claims may -re'quire I claim:

l. Flexible hose 'havinga duck fand rubber Wall landy internally provided throughout its length withV spaced immovable coupling elements available for repair luseloy cutting foil ruptured portions vof the wall of the hose, substantially as described.

2. A flexible hose length having l'an' uninterrupted wall and internally vprovided at its end Aand at intervals throughout its length with spaced and perm'anentlyand infiniovably internally threaded metal coupling sleeves fofsubstantially 'the same bore as the bore of the hose. v

3. Flexible-hosehaving an immovable conplin'g 'element embedded yin the intermediate port-ion fof the surface 'of its inner wall and available for repair use, :substantially as tdescribed.

4. Flexible ihose internally provided at intervals throughout its length 'with spa-'ced coupling .sleeves having radially 'arranged projections 'that vextend through and to the outer surface of lits -wall. v l

5. Flexible hose having in combination llO coupling sleeves provided With radially armovable coupling sleeves of which some are ranged projections extending into its Wall, operatively disposed in respect to one end and anclior plates provided With a plurality of the hose and of which others are opera- 10 of pins and engaging said projections and tively disposed in respect to the other end embedded in said Wall. of the hose.

6. Flexible hose internally provided both at and between its ends With spaced and im- HOWARD W. GOODALL. 

